Gemma Power to Build 1.2 GW Plant in Texas
Argan, Inc., a leading provider of engineering and construction services for the energy sector, has announced that its wholly owned subsidiary, Gemma Power Systems (“Gemma”), has received the official notice to proceed with construction of a 1.2-gigawatt (GW) ultra-efficient natural gas-fired power plant in Lee County, Texas. The project is being developed by Sandow Lakes Energy Company, LLC (“SLEC”), based in Rockdale, Texas.
This announcement marks a critical milestone in the development of a major energy infrastructure project, which is expected to significantly bolster Texas’ electric grid capacity. Now added to Argan’s growing project backlog, construction of the facility is set to commence in the summer of 2025, with completion projected in 2028.
Leadership Endorsement and Strategic Vision
Charles E. Collins, IV, Chief Executive Officer of Gemma, expressed enthusiasm about the project’s advancement. “We’re thrilled to move forward with SLEC on this major power project,” Collins said. “Their strong development efforts have laid a solid foundation for success, and we are excited to work together. Expanding our power infrastructure is essential to meeting rising energy demands, and our team is committed to delivering exceptional results.”
Details of the 1.2 GW Power Facility
The new power plant will be operated within the Electric Reliability Council of Texas (ERCOT), the independent system operator managing the flow of electric power to over 26 million Texans. The facility will feature two Siemens Energy SGT6-9000HL gas turbines—recognized as some of the most advanced and efficient turbines globally. These turbines are designed not only for optimal performance and fuel efficiency but are also capable of running on hydrogen fuel with minimal modifications, aligning with long-term goals for reducing carbon emissions and transitioning to cleaner energy sources.
Strategically located near a 24-inch tap on the Matterhorn Natural Gas Pipeline, the site offers logistical advantages for continuous fuel supply. As a combined cycle power station, the facility will maximize energy output by using both gas and steam turbines to generate electricity, significantly increasing overall efficiency compared to traditional plants.
SLEC’s Commitment to Sustainable Growth
Sandow Lakes Energy Company is positioning this project as a pivotal solution to the growing energy needs in Texas. As demand for reliable, efficient, and low-emission power continues to rise, SLEC’s new facility aims to meet that demand while also contributing to regional economic development.
“We are proud to bring this project to life in Lee County,” stated a spokesperson for SLEC. “This isn’t just an energy investment—it’s an investment in the future of Texas communities. From job creation to increased economic activity, we expect this power plant to generate benefits well beyond the electricity it produces.”
SLEC expects the project to create hundreds of construction jobs and provide ongoing employment opportunities for operation and maintenance once the plant is completed. The company is also emphasizing the plant’s role in environmental responsibility, highlighting its lower emissions profile and adaptability to cleaner fuel sources.
About Gemma Power Systems
Gemma Power Systems, a wholly owned subsidiary of Argan, has earned a reputation as one of the power industry’s most respected EPC (Engineering, Procurement, and Construction) providers. With over 15 GW of installed capacity across various technologies, Gemma’s portfolio includes natural gas-fired combined cycle and simple cycle power plants, biomass-fired power stations, solar and wind farms, and biofuel and environmental facilities.
The company’s integrated approach—from project conception and design to construction and commissioning—allows clients to benefit from streamlined execution and consistent quality. Gemma’s latest partnership with SLEC exemplifies its commitment to applying innovative and sustainable solutions to large-scale power infrastructure challenges.
About Argan, Inc.
Argan, Inc. specializes in delivering a wide range of construction and related services to the energy sector. The company’s primary focus is on the design and construction of natural gas-fired power plants and renewable energy facilities. Argan also offers services such as commissioning, maintenance, technical consulting, and project development through its various subsidiaries.
In addition to Gemma, Argan’s portfolio includes Atlantic Projects Company, a global energy project execution firm; The Roberts Company, a fully integrated industrial construction and fabrication enterprise; and SMC Infrastructure Solutions, a provider of telecommunications infrastructure services.
With a proven track record and robust service capabilities, Argan continues to support the energy transition while providing reliable infrastructure for today’s needs.
Broader Industry Impact
This new project comes at a time when the United States is grappling with growing energy demands, aging infrastructure, and a critical need for decarbonization. By leveraging advanced gas turbine technology capable of hydrogen integration, the SLEC-Gemma project provides a blueprint for next-generation power facilities that balance performance with sustainability.
The integration of hydrogen-ready turbines also signals alignment with emerging energy trends and policy goals around decarbonization. With global pressure mounting to reduce carbon emissions, this plant represents a pragmatic step toward a cleaner, more resilient energy future—while maintaining the reliability and scale of traditional fossil fuel infrastructure.
